autumnnoun [C or U]uk /ˈɔː.təm/ us /ˈɑː.t̬əm/ US usually fall
- In the autumn I rake up the dead leaves.
- Cutting the bush back in the autumn will help promote vigorous growth in the spring.
- By the look of things, we won't be able to take our holiday till the autumn.
- Our autumn catalogue is now available from our usual stockists.
- It was early autumn and the leaves were turning yellow.